Annual ziest

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Annual ziest
Annual Ziest (Stachys annua)

Annual Ziest ( Stachys annua )

Systematics
Euasterids I
Order : Mint family (Lamiales)
Family : Mint family (Lamiaceae)
Subfamily : Lamioideae
Genre : Zieste ( Stachys )
Type : Annual ziest
Scientific name
Stachys annua
L.

The annual ziest ( Stachys annua ) is a species of the mint family (Lamiaceae). Like the similar Upright Ziest, it was used as a remedy in some areas.

Appearance

The annual , herbaceous plant reaches a height of 10 to 30 cm. The stem grows upright and is usually very branchy. Like the leaves, it is almost bare or only short and softly haired.

The leaves are elongated-elliptical, finely notched to more or less entire margins, 2 to 5 cm long and 0.5 to 1.5 cm wide. The lower ones are stalked, the upper ones seated and almost lanceolate in shape.

The flowers are short stalked, about 1.5 cm long and sit in 2 to 8-flowered, but mostly 6-flowered pseudo whorls . The crown is pale sulfur yellow and hairy on the outside. The calyx teeth are soft-haired and spiky.

The nuts are approx. 2 mm long, blunt-edged, very finely dotted and black-brown in color.

The annual Ziest blooms mainly in the months from June to October.

The number of chromosomes is 2n = 34.

Distribution and location requirements

The annual Ziest grows in grain and root crop fields, gravel pits, fallow land and z. B. on railway embankments. It prefers warm, dry and, above all, lime-rich soils.

The annual Ziest occurs from Europe to Far Eastern Russia. It is an east-sub-Mediterranean floral element. In Central Europe it is a character species of the association Caucalidion lappulae.

In Austria the plant is common in the Pannonian region , otherwise it is scattered or rarely occurring. It can be found widespread in Switzerland.

Annual ziest ( Stachys annua , herbarium evidence )

The one-year-old Ziest is rare in Germany. It occurs mainly in the central part, such as the Rhine Valley, Jura and Muschelkalk regions and as far as the Allgäu. In addition, it usually only appears adventurously .

The annual Ziest is an archaeophyte from the Orient .

ecology

The annual ziest has roots up to 50 centimeters deep.

Systematics

One can distinguish the following subspecies and varieties:

  • Stachys annua subsp. ammophila (Boiss. & Blanche) Sam. : It occurs in southern Turkey and in the area of ​​Syria and Lebanon.
  • Stachys annua subsp. annua : It occurs from Europe to Far Eastern Asiatic Russia.
  • Stachys annua subsp. cilicica (Boiss.) R.Bhattacharjee : It occurs in southern and northern Turkey.
  • Stachys annua var. Lycaonica R.Bhattacharjee : It occurs in central Turkey.

Species protection

Endangerment in Germany: Category 3: endangered! The species should not be collected because of its rarity and endangerment.

literature

Individual evidence

  1. ↑ a b c Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp. 806 .
  2. ↑ a b c d e f Rafaël Govaerts (Ed.): Stachys annua. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved February 19, 2016.

Web links

Commons : Annual Ziest  album with pictures, videos and audio files